O.M.A.C. also known as OMAC was the One Machine Attack Construct cyborg used by Brother Eye and Cadmus Laboratories. There were several OMACs in existence, used by Cadmus to guard the Earth 2 prisoners on Cadmus Island. However, none were as powerful as the original OMAC, Kevin Kho.
While all OMACS include enhanced strength and fighting capabilities, they also had slight electromagnetic functions. Compared to Kevin Kho, however, most OMACs were a severe downgrade compared to the juggernaut strength and power Kho possessed.